﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Collections.Generic;

namespace Xceed.Silverlight.Data
{
  internal class GroupFetchResult : DataEnumeratorResult
  {
    public GroupFetchResult( ICollection<DataPath> fetchedItems, SourcePosition endPosition,  
      RelativeOffset endPositionOffset, EstimateInt64 totalCount )
    {
      if(endPosition == null)
        throw new ArgumentNullException("endPosition");

      if( endPositionOffset != null && endPositionOffset.Value < 0 )
        throw new ArgumentException( "endPositionOffset must be greater than or equal to zero.", "endPositionOffset" );

      if(totalCount != null && totalCount.Value < 0)
        throw new ArgumentException( "totalCount must be greater than or equal to zero.", "totalCount" );

      if( fetchedItems == null && !endPosition.IsOutOfBound )
        throw new ArgumentException( "fetchedItems cannot be null if endPosition is within bounds.", "fetchedItems" );

      if( endPositionOffset != null && totalCount != null
        && endPositionOffset.Value > ( totalCount.Value + 1 ) )
        throw new ArgumentException( "The specified endPositionOffset is inconsistent with totalCount.", "endPositionOffset" );

      this.FetchedItems = fetchedItems;
      this.EndPositionObject = endPosition;
      this.EndPositionOffset = endPositionOffset;
      this.TotalCount = totalCount;
    }

    public ICollection<DataPath> FetchedItems
    {
      get;
      private set;
    }

    public SourcePosition EndPositionObject
    {
      get;
      private set;
    }

    public RelativeOffset EndPositionOffset
    {
      get;
      private set;
    }

    public EstimateInt64 TotalCount
    {
      get;
      private set;
    }
  }
}
